- Microsoft Outlook might open in your web browser instead of your app.
- This problem is caused by a corrupted cache, changed defaults, and app preference issues.
- Fixes involve clearing the cache, reassigning shortcuts, and changing app defaults.
The Microsoft Office Suite has fully embraced life in your browser, as well as it has life as an app. Microsoft Outlook is no exception. Sometimes, though, you want things to open as a program, so if Outlook is insisting on doing otherwise, then we’ve got a few fixes for you to try.
In this article, we’ll be looking at how to fix Outlook opening in browser instead of app.
What Causes Outlook Opening Browser Instead of App?
There are a few reasons your Outlook opens in browser instead of app. The new Outlook can cause some conflicts with the old Outlook and its access shortcuts. Some major reasons include:
- Using a shortcut with a different path (e.g., Old Outlook)
- A Windows Update is resetting Outlook’s defaults
- A corrupted cache
Fixing the Online Outlook Problem
Let’s take a look at some solutions to get the new Outlook and its shortcuts running on your PC once again:
Check and Change the Shortcuts
If you’ve got an Outlook shortcut pinned to your desktop or taskbar, it might be taking you to the online version of Outlook instead of the local app. Here’s how to fix it:
Step 1. Right-click the taskbar shortcuts and select “Unpin from taskbar,” and delete any existing Desktop shortcuts.

Step 2. Type Outlook into the search bar and look for the app (not Classic Outlook).
Step 3. Right-click the app and choose “Pin to taskbar.”

Step 4. Check to see if the issue has been resolved.

Change the Default App
Sometimes the problem is Windows switching away from Outlook as your default app. You can change this back in Settings:
Step 1. Open Settings (Win + I) and choose “Apps” from the sidebar.

Step 2. Choose “Default Apps,” then navigate down until you reach the “MAILTO” subsection.
Step 3. Click and choose “Outlook” from the list of options, again ensuring you pick the app and not Classic Outlook.

Step 4. See if the issue is resolved.
Clearing the Cache
There’s a lot that can get corrupted in a cache that’s not been cleared, especially with frequent system updates and changes. A good fix is to clear your Outlook cache and remove any potential web settings that are in there. Never fear, your emails won’t be deleted in the process. Here’s what to do:
Step 1. Open an Explorer Window (Win + E) and type “%localappdata%\Microsoft\Olk” into the address bar at the top.
Step 2. In the OLK folder, click the cache. Press (Shift +Del) to remove the entire cache instead of moving it to the Recycle Bin.
Step 3. Restart your machine. The Cache folder will be rebuilt automatically.
If this doesn’t resolve the issue, you can also try deleting both the logs and EBWebView folders in the same way, restarting afterwards.
Force a Sign Out
Another way to control when Outlook redirects to browser is to force the app to sign out and ensure that the sign-in process through your app makes it the only destination. Here’s what to do:
Step 1. Open an Explorer window (Win + E) and type “%localappdata%\Microsoft\OneAuth” into the address bar.
Step 2. Delete the “OneAuth” folder (Shift + Del), and you’ll be signed out locally.

Step 3. Use the new Outlook app to sign back in and check if the problem’s fixed.
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- Be sure to print in portrait mode instead of landscape mode by updating the printing preference.
- Paper size selection is important and should match the size of the physical paper.
- Adding the printer back to Windows can resolve the issue that prevented the printer from using the proper orientation.
1. Change the Default Orientation on the Printer Properties
Step 1: Press the Windows + I keyboard shortcut to launch the Settings app.
Step 2: On the left pane, click Bluetooth & devices , and on the right, click Printers & scanners and select the printer you want to fix.

Step 3: Click Printing preferences to open the printer’s configuration window.

Step 4: Select Portrait from the Orientation drop-down list, then click Apply and OK .

2. Change Orientation in Page Setup
You can make specific changes to the application or document you want to print from. For example, if you are trying to print from Microsoft Word, change the page orientation before printing, which will reflect when you print the page.
Step 1: Click the Layout section in the Word document, expand Orientation , and select Portrait .

Step 2: Proceed to print the document. It should automatically choose the orientation based on the document layout.
3. Change Layout in Print Setup
If you cannot change the orientation from the app as you would on a word processor, switch to Portrait on the print setup page before printing the document, as shown below.
Step 1: Press the Control + P keyboard shortcut to initiate the print process. This should open the print setup page.
Step 2: Under the Layout section, select Portrait > Print .

4. Check for and Correct Page Size Mismatch
One reason your printer prints landscape instead of portrait is a page mismatch. That means the printer may expect A4 paper even though you have loaded A5 sheets.
Go to Print Setup > expand More settings > select a matching Paper size > click Print .

5. Confirm Network Printer Settings Are Not Overriding Local Settings
This solution will apply if you are connected to a network printer. If the network printer has a set of print preferences different from what you want, you may need to contact the administrator to resolve the issue. Alternatively, switch to a local printer to perform the print job.
6. Re-Add the Printer to Windows
You can fix this problem by removing the printer from your computer and re-adding it. This is a valid fix because when the computer is re-added, it comes with a default set of configurations, and any misconfiguration that caused the problem would be removed.
Step 1: Go to the Printers & scanners in the Windows Settings app.

Step 2: Select the problematic printer and click on Remove .

Step 3: Restart the computer and return to Printers & scanners .

Step 4: Click Add Device and follow the wizard to complete the process. The issue should be resolved.

7. Factory Reset the Printer
If your printer keeps printing sideways or landscape, resetting it to factory settings can resolve the problem. A factory reset reconfigures all printer settings and restores them to default. The procedures for performing a factory reset vary depending on the printer brand. For instructions on properly executing this operation on your printer, consult your user manual.